JPH07224946A - Sealing device - Google Patents
Sealing deviceInfo
- Publication number
- JPH07224946A JPH07224946A JP6035319A JP3531994A JPH07224946A JP H07224946 A JPH07224946 A JP H07224946A JP 6035319 A JP6035319 A JP 6035319A JP 3531994 A JP3531994 A JP 3531994A JP H07224946 A JPH07224946 A JP H07224946A
- Authority
- JP
- Japan
- Prior art keywords
- sealing device
- lip
- retainer
- main body
- holding member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/924—Deformation, material removal, or molding for manufacture of seal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えばエンジンブロッ
クとクランク軸との間をシールするもので、リテーナや
カバー等とリップ部とを一体化した密封装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device for sealing between an engine block and a crankshaft, for example, a retainer, a cover and the like and a lip portion.
【０００２】[0002]
【従来の技術】従来のこの種の密封装置としては、例え
ば図６に示すようなものが知られている。2. Description of the Related Art As a conventional sealing device of this type, for example, one shown in FIG. 6 is known.
【０００３】図６は、図示しないエンジン本体が収納さ
れたエンジンブロックに適用された密封装置Ａ’の断面
図であり、保持部材である金属製のリテーナ１０１と、
このリテーナ１０１に一体的に成形されたシールリップ
としてのゴム状弾性体製のリップ部１０２とからなるも
のである。FIG. 6 is a cross-sectional view of a sealing device A'applied to an engine block in which an engine body (not shown) is housed, and a metal retainer 101 as a holding member,
The retainer 101 is integrally formed with a lip portion 102 made of a rubber-like elastic body as a seal lip.
【０００４】このリテーナ１０１は、固定ボルト１１１
にてエンジンブロック１０７に固定されており、エンジ
ンブロック１０７との接触面にはオイル漏洩防止のた
め、Ｏリング溝１０９が形成され、Ｏリング１１０が装
着されている。The retainer 101 has a fixing bolt 111.
Is fixed to the engine block 107, an O-ring groove 109 is formed on the contact surface with the engine block 107 to prevent oil leakage, and an O-ring 110 is attached.
【０００５】また、リップ部１０２は、軸１０６の外周
面に摺接しシールするリップ先端部１０２ａと、そのリ
ップ先端部１０２ａの大気側に補助リップ１０２ｂを備
え、リテーナ１０１の内周側先端の接続部１０１ａにて
リテーナ１０１と接続されるよう一体化されている。一
方、リップ先端部１０２ａの外周側に軸１０６への押圧
力調整のためのバネ１０５が設けられている。Further, the lip portion 102 is provided with a lip tip portion 102a which is brought into sliding contact with the outer peripheral surface of the shaft 106 to seal it, and an auxiliary lip 102b on the atmosphere side of the lip tip portion 102a. It is integrated so as to be connected to the retainer 101 at the portion 101a. On the other hand, a spring 105 for adjusting the pressing force on the shaft 106 is provided on the outer peripheral side of the lip tip portion 102a.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記従
来の密封装置においては、外部の影響、例えば高いトル
クで固定ボルト１１１を締付ける、エンジンからの熱の
伝達等により、保持部材としてのリテーナ１０１が変形
（リテーナが樹脂製の場合は変形がさらに大きくな
る。）を受けた場合、このリテーナ１０１の変形に伴い
リップ部１０２が変形してしまう。また、リテーナが樹
脂製の場合は、成形後、樹脂が固まる時に起きる変形が
さらにリップ部１０２に伝わってしまう。このようなリ
ップ部１０２の変形により、軸１０６の外周面とリップ
先端部１０２ａとの間に隙間が生じたり、芯ずれにより
軸１０６との接触状態に偏りを生じ不安定になったり、
異常摩耗を起こしてしまう。こうなることで密封装置
Ａ’の密封性は低下し、オイル漏洩などの問題が発生し
ていた。However, in the above-mentioned conventional sealing device, the retainer 101 as a holding member is deformed due to external influences such as tightening the fixing bolt 111 with a high torque and heat transfer from the engine. (When the retainer is made of resin, the deformation is further increased.) When the retainer 101 is deformed, the lip portion 102 is deformed. Further, when the retainer is made of resin, the deformation that occurs when the resin hardens after the molding is further transmitted to the lip portion 102. Due to such deformation of the lip portion 102, a gap may be formed between the outer peripheral surface of the shaft 106 and the lip tip portion 102a, or the contact state with the shaft 106 may be deviated due to misalignment to become unstable.
It causes abnormal wear. As a result, the sealing performance of the sealing device A ′ is deteriorated, causing problems such as oil leakage.
【０００７】本発明は上記従来技術の問題を解決するた
めになされたもので、その目的とするところは、保持部
材が外部からの影響を受けて変形した場合でも、シール
リップが変形しない密封装置を提供することにある。The present invention has been made to solve the above-mentioned problems of the prior art, and an object thereof is to provide a sealing device in which the seal lip does not deform even when the holding member is deformed under the influence of the outside. To provide.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に本考案にあっては、シールリップと該シールリップを
支持する補強環とを備えた密封装置本体を、該密封装置
本体を保持する保持部材を介して取付部に固定する密封
装置において、前記密封装置本体を弾性部材を介して前
記保持部材と一体化し、前記弾性部材によって前記密封
装置本体を前記保持部材に対して浮動支持したことを特
徴とする。In order to achieve the above object, in the present invention, a sealing device body having a seal lip and a reinforcing ring for supporting the sealing lip is held by the sealing device body. In a sealing device fixed to a mounting portion via a holding member, the sealing device body is integrated with the holding member via an elastic member, and the sealing device body is floatingly supported by the elastic member with respect to the holding member. Is characterized by.
【０００９】また、前記保持部材は樹脂製で、予め前記
弾性部材を固定した前記密封装置本体をインサート成形
によって前記保持部材と一体成形するとよい。Further, it is preferable that the holding member is made of resin, and the sealing device main body to which the elastic member is fixed in advance is integrally formed with the holding member by insert molding.
【００１０】前記弾性部材をゴム状弾性材とするとよ
い。The elastic member may be a rubber-like elastic material.
【００１１】[0011]
【作用】上記のように構成された密封装置によれば、密
封装置本体を弾性部材を介して保持部材と一体化し、弾
性部材によって密封装置本体を保持部材に対して浮動支
持したので、保持部材が変形しても弾性部材によってそ
の変形が吸収される。According to the sealing device constructed as described above, the sealing device main body is integrated with the holding member via the elastic member, and the sealing member main body is floatingly supported with respect to the holding member by the elastic member. Even if is deformed, the elastic member absorbs the deformation.
【００１２】また、保持部材は樹脂製で、予め弾性部材
を固定した密封装置本体をインサート成形によって保持
部材と一体成形することで、一体化が容易となる。Further, the holding member is made of resin, and the sealing device main body to which the elastic member is fixed in advance is integrally formed with the holding member by insert molding, so that the integration is facilitated.
【００１３】弾性部材をゴム状弾性材とすることで、密
封装置本体と保持部材とを弾性部材を介してさらに容易
に一体化できる。By using a rubber-like elastic material as the elastic member, the main body of the sealing device and the holding member can be more easily integrated via the elastic member.
【００１４】[0014]
【実施例】以下に本発明を図示の実施例に基づいて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments.
【００１５】図１は、本発明に係る密封装置の一実施例
であり、エンジンブロックに適用されたもので、（ａ）
は正面図、（ｂ）は側面図、（ｃ）は（ａ）におけるＺ
−Ｚ断面図である。FIG. 1 shows an embodiment of a sealing device according to the present invention, which is applied to an engine block.
Is a front view, (b) is a side view, (c) is Z in (a).
It is a -Z sectional view.
【００１６】この図１において、密封装置Ａはエンジン
本体（図示なし）が収納されたエンジンブロック７と、
このエンジンブロック７から突出する軸６との間をシー
ルするものである。In FIG. 1, the sealing device A includes an engine block 7 in which an engine body (not shown) is housed,
The shaft 6 protruding from the engine block 7 is sealed.
【００１７】この密封装置Ａは樹脂製の保持部材として
のリテーナ１と、補強環としての金属環３と金属環３の
外周に成形されたシールリップとしてのゴム状弾性体製
のリップ部２とからなる密封装置本体ａと、を一体化し
たものであり、リテーナ１をエンジンブロック７に２か
所の位置決めピン１２にて位置を決め、固定ボルト１１
にて取付部に固定装着し、軸６の外周面にリップ部２が
摺接することでシールしている。The sealing device A includes a retainer 1 as a resin holding member, a metal ring 3 as a reinforcing ring, and a rubber-like elastic lip portion 2 as a seal lip formed on the outer periphery of the metal ring 3. The sealing device main body a, which is composed of 1), is integrated, and the retainer 1 is positioned on the engine block 7 by the two positioning pins 12, and the fixing bolt 11
Is fixedly attached to the mounting portion, and the outer peripheral surface of the shaft 6 is slidably contacted with the lip portion 2 for sealing.
【００１８】なお、エンジンブロック７の下部には、オ
イルを収容するオイルパン８が複数のオイルパンボルト
１３を介して取付けられている。An oil pan 8 for storing oil is attached to the lower portion of the engine block 7 via a plurality of oil pan bolts 13.
【００１９】図２（ａ）は、密封装置Ａの構成を詳しく
説明するために図１（ｃ）に示した断面図を拡大した拡
大断面図、（ｂ）は、Ｂ矢視図である。また、図３はリ
ップ部２単体の断面図である。FIG. 2A is an enlarged sectional view in which the sectional view shown in FIG. 1C is enlarged in order to explain the structure of the sealing device A in detail, and FIG. FIG. 3 is a sectional view of the lip portion 2 alone.
【００２０】この図２乃至図３において、リップ部２
は、内向フランジ部３ａ，円筒部３ｂからなる断面略Ｌ
字形状の環状の芯金としての金属環３と、この金属環３
の周囲に成形され設けられたゴム状弾性体製の複数のリ
ップからなり、この複数のリップについて説明すると、
金属環３の内向フランジ部３ａの内周側から、小径とな
り円筒部３ｂが延びる方向にリップ先端部２ａ、装着時
その大気側となる位置に補助リップ２ｄが成形され、ま
た、内向フランジ部３ａと円筒部３ｂの接合部には、大
径となり円筒部３ｂと逆側に延びる方向に外周突起状第
１リップ２ｂがその先端の肉厚ｔ２ｂが首部の肉厚ｔ２
ｂ’より大きくなるように成形され、さらに、円筒部３
ｂの先端には、大径となり円筒部３ｂが延びる方向に外
周突起状第２リップ２ｃがその先端の肉厚ｔ２ｃが首部
の肉厚ｔ２ｃ’より大きくなるように成形されされてい
る。2 to 3, the lip portion 2
Is a cross-section substantially L including an inward flange portion 3a and a cylindrical portion 3b.
Metal ring 3 as a V-shaped annular core metal, and this metal ring 3
It consists of a plurality of lips made of rubber-like elastic body formed around the periphery of, and explaining the plurality of lips,
From the inner peripheral side of the inward flange portion 3a of the metal ring 3, a lip tip portion 2a is formed in a direction in which the diameter becomes small and the cylindrical portion 3b extends, and an auxiliary lip 2d is formed at a position on the atmosphere side when mounted, and the inward flange portion 3a. At the joint between the cylindrical portion 3b and the cylindrical portion 3b, the outer peripheral protruding first lip 2b has a wall thickness t2b at its tip and a wall thickness t2 at the neck portion in a direction in which the diameter becomes large and extends in the direction opposite to the cylindrical portion 3b.
It is molded so as to be larger than b ′, and further, the cylindrical portion 3
An outer peripheral projecting second lip 2c is formed at the tip of b so as to have a large diameter and in the direction in which the cylindrical portion 3b extends so that the wall thickness t2c at the tip thereof is larger than the wall thickness t2c 'at the neck.
【００２１】ここで、密封装置Ａの製造方法を説明する
と、まず、金属環３の周囲に、リップ先端部２ａ，外周
突起状第１リップ２ｂ，外周突起状第２リップ２ｃおよ
び補助リップ２ｄ等を前述の図のような断面構造となる
ように、ゴム状弾性体にてリップ部２を成形する。次
に、この成形されたリップ部２を、リテーナ１を成形す
るための成形型の所定の位置に載置した状態で、リップ
部２にある外周突起状第１および第２リップ２ｂ，２ｃ
と共にその外周側を覆うように樹脂によりインサート成
形されるが、この時、図２（ａ）において左右両側から
リップ部２に対してバランスよく圧力がかかるように、
図２（ｂ）に示すように全周的、略等間隔放射状にリブ
４が成形される。このリブ４は、リテーナ１成形時の圧
力バランスをとるもので、その形状についてはどんなも
のでもよく、勿論なくともリテーナ１の成形は可能であ
る。このようにしてリテーナ１とリップ部２が一体化さ
れる。この成形において成形熱が発生するが、リップ部
２のゴム状弾性体は耐熱性の高い素材であるため影響を
受けない。The method of manufacturing the sealing device A will be described. First, around the metal ring 3, the lip tip 2a, the outer peripheral protruding first lip 2b, the outer peripheral protruding second lip 2c, the auxiliary lip 2d, etc. The lip portion 2 is molded with a rubber-like elastic body so as to have a sectional structure as shown in the above-mentioned drawing. Next, with the formed lip portion 2 placed on a predetermined position of a forming die for forming the retainer 1, the outer peripheral protruding first and second lips 2b, 2c on the lip portion 2 are formed.
At the same time, it is insert-molded with resin so as to cover the outer peripheral side thereof, but at this time, in order to apply pressure in a balanced manner to the lip portion 2 from both left and right sides in FIG.
As shown in FIG. 2 (b), ribs 4 are formed around the entire circumference in a radial shape at substantially equal intervals. The rib 4 serves to balance the pressure when the retainer 1 is molded, and the rib 4 may have any shape, and of course the retainer 1 can be molded. In this way, the retainer 1 and the lip portion 2 are integrated. Molding heat is generated in this molding, but the rubber-like elastic body of the lip portion 2 is not affected because it is a material having high heat resistance.
【００２２】このように製造された密封装置Ａは、図２
に示すように外周突起状第１リップ２ｂ，外周突起状第
２リップ２ｃが隙間なく確実に樹脂にて覆われる状態で
リテーナ１の接続部１ａで接続され一体化される。The sealing device A thus manufactured is shown in FIG.
As shown in (1), the outer peripheral projecting first lip 2b and the outer peripheral projecting second lip 2c are connected and integrated by the connecting portion 1a of the retainer 1 in a state where the outer peripheral projecting second lip 2c is surely covered with resin without a gap.
【００２３】そして、密封装置Ａのリップ部２のリップ
先端部２ａの外周側に軸６への押圧力調整のためのバネ
５が設けられ、リテーナ１にある複数のボルト穴１ｂに
それぞれ固定ボルト１１が挿入され締付けられ、図１に
示したように装着される。この実施例においてもリテー
ナ１のエンジンブロック７との当接面に従来例で示した
ようなオイル漏洩防止のためのＯリング溝を形成しても
よい。A spring 5 for adjusting the pressing force to the shaft 6 is provided on the outer peripheral side of the lip tip portion 2a of the lip portion 2 of the sealing device A, and the fixing bolts are respectively attached to the plurality of bolt holes 1b in the retainer 1. 11 is inserted, tightened, and mounted as shown in FIG. Also in this embodiment, an O-ring groove for preventing oil leakage as shown in the conventional example may be formed on the contact surface of the retainer 1 with the engine block 7.
【００２４】このように構成することで、リテーナ１に
外部からの影響による変形が生じてもリップ部２に芯金
となる金属環３がにあるため、リップ部２の変形が著し
く抑えられ、さらに、リテーナ１の接続部１ａにおいて
外周突起状第１および第２リップ２ｂ，２ｃを介して金
属環３があるため、リテーナ１の歪みは外周突起状第１
および第２リップ２ｂ，２ｃに吸収され、金属環３に伝
達しにくくなり、リップ部２の変形が防止できる。With this structure, even if the retainer 1 is deformed by an external influence, the lip 2 has the metal ring 3 as the core metal, so that the deformation of the lip 2 is significantly suppressed. Furthermore, since there is the metal ring 3 in the connecting portion 1a of the retainer 1 via the outer peripheral projecting first and second lips 2b and 2c, the strain of the retainer 1 is the outer projecting first
Also, it is absorbed by the second lips 2b and 2c and is less likely to be transmitted to the metal ring 3, so that the deformation of the lip portion 2 can be prevented.
【００２５】また、樹脂成形後、樹脂が固まる時に変形
が生じても、前述のようにリップ部２の変形が防止でき
るというフローティング効果がある。Further, there is a floating effect that the deformation of the lip portion 2 can be prevented as described above even if the resin is deformed when it is solidified after the resin molding.
【００２６】なお、この実施例では環状の芯金として金
属環を用いたが、金属環に限らずリテーナの変形等の影
響を受けにくいものであればよく、例えばセラミック等
の樹脂でもよい。また、リテーナとリップ部の接合部に
おけるゴム状弾性体の形状はリテーナの歪みが金属環に
伝達しにくいものであればよく、本願のような外周突起
状第１および第２リップ２ｂ，２ｃのような形状に限ら
ない。In this embodiment, the metal ring is used as the ring-shaped core metal, but the metal core is not limited to the metal ring and may be any one that is not easily affected by the deformation of the retainer, for example, a resin such as ceramic. Further, the shape of the rubber-like elastic body at the joint portion between the retainer and the lip portion may be any shape as long as strain of the retainer is difficult to be transmitted to the metal ring, and the outer peripheral protruding first and second lips 2b, 2c as in the present application can be formed. It is not limited to such a shape.
【００２７】（他の実施例）図４は、密封装置Ａの他の
実施例を示した断面図である。また、図５はリップ部２
単体の断面図である。この実施例は、前述の実施例の金
属環３の形状を変更したもので、その形状変更に伴う相
違点の他は、前述の実施例と同様である。(Other Embodiments) FIG. 4 is a sectional view showing another embodiment of the sealing device A. Also, FIG. 5 shows the lip portion 2.
It is sectional drawing of a single body. In this embodiment, the shape of the metal ring 3 of the above-mentioned embodiment is changed, and the difference is the same as that of the above-mentioned embodiment except the difference in shape.
【００２８】この図４乃至図５において、リップ部２
は、内向フランジ部３ａ，円筒部３ｂおよび外周フラン
ジ部３ｃからなる穴あきの略ハット形状である補強環と
しての金属環３と、この金属環３の周囲に成形され設け
られたゴム状弾性体製の複数のリップとでからなり、こ
の複数のリップについて説明すると、前述の実施例と同
様に金属環３の内向フランジ部３ａの内周側から、小径
となり円筒部３ｂが延びる方向にリップ先端部２ａ、装
着時その大気側となる位置に補助リップ２ｄが成形さ
れ、また、内向フランジ部３ａと円筒部３ｂの接合部に
は、大径となり円筒部３ｂと逆側に延びる方向に外周突
起状第１リップ２ｂがその先端の肉厚ｔ２ｂが首部の肉
厚ｔ２ｂ’より大きくなるように成形され、さらに、円
筒部３ｂの先端から延びる外周フランジ部３ｃの外周側
には、さらに外周方向に外周突起状第２リップ２ｃが先
端の肉厚が大きくなるように成形されている。この金属
環３は外周フランジ部３ｃを設けたことで、前述の第１
実施例よりも変形しにくくなった。なお、この金属環３
はリップ部２の変形を防止することを主な目的とするも
ので、形状はこれに限らず、リップ部２の変形を防止で
きるものであればよい。In FIGS. 4 to 5, the lip portion 2
Is a metal ring 3 as a reinforcing ring having a substantially hat shape with a hole formed of an inward flange portion 3a, a cylindrical portion 3b, and an outer peripheral flange portion 3c, and a rubber-like elastic body formed around the metal ring 3 and provided. The plurality of lips will be described. The plurality of lips will be described. The lip tip portion in the direction in which the diameter becomes small and the cylindrical portion 3b extends from the inner peripheral side of the inward flange portion 3a of the metal ring 3 as in the above-described embodiment. 2a, an auxiliary lip 2d is formed at a position that is on the atmosphere side when mounted, and an outer peripheral projection is formed in a joint portion between the inward flange portion 3a and the cylindrical portion 3b, which has a large diameter and extends in the direction opposite to the cylindrical portion 3b. The first lip 2b is formed such that the wall thickness t2b at the tip thereof is larger than the wall thickness t2b 'of the neck portion, and further, in the outer peripheral direction on the outer peripheral side of the outer peripheral flange portion 3c extending from the front end of the cylindrical portion 3b. The outer peripheral projecting second lip 2c is formed so that the wall thickness of the tip is increased. This metal ring 3 is provided with the outer peripheral flange portion 3c, so that
It became harder to deform than the example. In addition, this metal ring 3
Is mainly intended to prevent deformation of the lip portion 2, and the shape is not limited to this, and any shape that can prevent deformation of the lip portion 2 may be used.
【００２９】このように構成することで、リテーナ１に
外部からの影響による変形が生じてもリップ部２に前述
の第１実施例よりも変形しにくい金属環３があるため、
リップ部２の変形が著しく抑えられ、さらに、リテーナ
１の接続部１ａにおいて外周突起状第１および第２リッ
プ２ｂ，２ｃを介して金属環３があるため、リテーナ１
の歪みは外周突起状第１および第２リップ２ｂ，２ｃに
吸収され、金属環３に伝達しにくくなり、リップ部２の
変形が防止できる。With this structure, even if the retainer 1 is deformed by external influences, the lip portion 2 has the metal ring 3 which is less likely to be deformed than the first embodiment.
Deformation of the lip portion 2 is remarkably suppressed, and furthermore, in the connecting portion 1a of the retainer 1, there is the metal ring 3 via the outer peripheral protruding first and second lips 2b and 2c, so that the retainer 1
Is absorbed by the outer peripheral projecting first and second lips 2b and 2c and is less likely to be transmitted to the metal ring 3, and deformation of the lip 2 can be prevented.
【００３０】また、樹脂成形後、樹脂が固まる時に変形
が生じても、前述のようにリップ部２の変形が防止でき
るというフローティング効果がある。Further, even if the resin is deformed after it is molded and the resin is hardened, the lip portion 2 can be prevented from being deformed as described above, which has a floating effect.
【００３１】[0031]
【発明の効果】本考案は以上の構成および作用を有する
もので、密封装置本体を弾性部材を介して保持部材と一
体化し、弾性部材によって密封装置本体を保持部材に対
して浮動支持したので、保持部材が変形しても弾性部材
によってその変形が吸収され、シールリップの変形でき
るというフローティング効果がある。According to the present invention having the above-described structure and operation, the sealing device body is integrated with the holding member via the elastic member, and the sealing device body is supported by the elastic member in a floating manner. Even if the holding member is deformed, the elastic member absorbs the deformation and the seal lip can be deformed, which is a floating effect.
【００３２】また、保持部材は樹脂製で、予め弾性部材
を固定した密封装置本体をインサート成形によって保持
部材と一体成形することで、一体化が容易となりコスト
ダウンが図れる。Further, since the holding member is made of resin and the sealing device main body to which the elastic member is fixed in advance is integrally formed with the holding member by insert molding, the integration becomes easy and the cost can be reduced.
【００３３】弾性部材をゴム状弾性材とすることで、密
封装置本体と保持部材とを弾性部材を介してさらに容易
に一体化でき、コストダウンとなる。By using a rubber-like elastic material as the elastic member, the main body of the sealing device and the holding member can be more easily integrated via the elastic member, and the cost can be reduced.
【図１】図１（ａ），（ｂ），（ｃ）はそれぞれ本発明
の実施例に係る密封装置が適用されたエンジンブロック
の正面図，側面図，要部断面図である。1 (a), (b), and (c) are a front view, a side view, and a sectional view of a main part of an engine block to which a sealing device according to an embodiment of the present invention is applied.
【図２】図２（ａ）は図１（ｃ）の拡大断面図、（ｂ）
はリブ４の状態を示すための側面図である。FIG. 2 (a) is an enlarged sectional view of FIG. 1 (c), (b).
FIG. 4 is a side view showing the state of ribs 4.
【図３】図３は図２におけるリップ部２単体の断面図で
ある。3 is a cross-sectional view of a single lip portion 2 in FIG.
【図４】図４は本発明の他の実施例に係る密封装置の要
部断面図である。FIG. 4 is a sectional view of an essential part of a sealing device according to another embodiment of the present invention.
【図５】図５は図４におけるリップ部２単体の断面図で
ある。5 is a cross-sectional view of the lip portion 2 alone in FIG.
【図６】図６は従来の密封装置を示す断面図である。FIG. 6 is a cross-sectional view showing a conventional sealing device.
Ａ，Ａ’ 密封装置 ａ 密封装置本体 １，１０１ リテーナ（保持部材） １ａ，１０１ａ 接続部 １ｂ ボルト穴 ２ リップ部（シールリップ） ２ａ，１０２ａ リップ先端部 ２ｂ 外周突起状第１リップ ２ｃ 外周突起状第２リップ ２ｄ，１０２ｄ 補助リップ ３，１０３ 金属環（補強環） ３ａ 内向フランジ部 ３ｂ 円筒部 ３ｃ 外周フランジ部 ４ リブ ５，１０５ バネ ６，１０６ 軸 ７，１０７ エンジンブロック ８ オイルパン １１，１１１ 固定ボルト １２ 位置決めピン １３ オイルパンボルト １０９ Ｏリング溝 １１０ Ｏリング A, A ′ Sealing device a Sealing device main body 1,101 Retainer (holding member) 1a, 101a Connection part 1b Bolt hole 2 Lip part (seal lip) 2a, 102a Lip tip part 2b Peripheral protrusion-shaped first lip 2c Peripheral protrusion-shaped 2nd lip 2d, 102d Auxiliary lip 3,103 Metal ring (reinforcing ring) 3a Inward flange part 3b Cylindrical part 3c Outer peripheral flange part 4 Rib 5,105 Spring 6,106 Shaft 7,107 Engine block 8 Oil pan 11,111 Fixed Bolt 12 Positioning pin 13 Oil pan bolt 109 O-ring groove 110 O-ring
Claims (3)
る補強環とを備えた密封装置本体を、該密封装置本体を
保持する保持部材を介して取付部に固定する密封装置に
おいて、 前記密封装置本体を弾性部材を介して前記保持部材と一
体化し、前記弾性部材によって前記密封装置本体を前記
保持部材に対して浮動支持したことを特徴とする密封装
置。1. A sealing device for fixing a sealing device main body, comprising a sealing lip and a reinforcing ring supporting the sealing lip, to a mounting portion via a holding member for holding the sealing device main body, wherein the sealing device main body is provided. Is integrated with the holding member via an elastic member, and the sealing device main body is floatingly supported with respect to the holding member by the elastic member.
部材を固定した前記密封装置本体をインサート成形によ
って前記保持部材と一体成形した請求項１に記載の密封
装置。2. The sealing device according to claim 1, wherein the holding member is made of resin, and the sealing device main body to which the elastic member is fixed in advance is integrally molded with the holding member by insert molding.
項１または２に記載の密封装置。3. The sealing device according to claim 1, wherein the elastic member is a rubber-like elastic material.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03531994A JP3177086B2 (en) | 1994-02-07 | 1994-02-07 | Sealing device |
| US08/383,489 US5588656A (en) | 1994-02-07 | 1995-02-03 | Crankshaft seal having resilient portion embedded in rigid retainer |
| DE19503822A DE19503822A1 (en) | 1994-02-07 | 1995-02-06 | Sealing device for vehicle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03531994A JP3177086B2 (en) | 1994-02-07 | 1994-02-07 | Sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07224946A true JPH07224946A (en) | 1995-08-22 |
| JP3177086B2 JP3177086B2 (en) | 2001-06-18 |
Family
ID=12438499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03531994A Expired - Fee Related JP3177086B2 (en) | 1994-02-07 | 1994-02-07 | Sealing device |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5588656A (en) |
| JP (1) | JP3177086B2 (en) |
| DE (1) | DE19503822A1 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5850448A (en) * | 1994-10-25 | 1998-12-15 | Bell Atlantic Network Services, Inc. | Programmed computer for generating pronounceable security passwords |
| IT239862Y1 (en) * | 1996-12-03 | 2001-03-13 | R F T S P A | SEALING COMPLEX FOR A ROTATING SHAFT, IN PARTICULAR OF A WATER PUMP OF AN AUTOMOTIVE ENGINE. |
| GB9713045D0 (en) * | 1997-06-21 | 1997-08-27 | Perkins Ltd | A rotary shaft sealing system |
| US20040201181A1 (en) * | 2003-04-09 | 2004-10-14 | Williamson Alexander S. | Flange seal |
| JP2006258163A (en) * | 2005-03-16 | 2006-09-28 | Nok Corp | Sealing device |
| DE102005026059B4 (en) * | 2005-06-07 | 2007-03-29 | Mtu Friedrichshafen Gmbh | Made of a thermoplastic material component with a pressed-in an opening of the component ring or sleeve-shaped element and method for producing such |
| US20070163530A1 (en) * | 2006-01-13 | 2007-07-19 | Luchs Berndt L | Seal assembly |
| US20080012243A1 (en) * | 2006-06-02 | 2008-01-17 | Jason Altwies | Drive axle hub gasket and a method of using the same |
| DE102007052068A1 (en) * | 2007-10-30 | 2009-05-07 | Dichtungstechnik G. Bruss Gmbh & Co. Kg | Rotary shaft seal for sealing shaft i.e. crankshaft, in motor vehicle engine or transmission, has radial flange comprising recess causing attenuation of axial expansion of radial flange within shaft near region |
| DE102008025725A1 (en) * | 2008-05-29 | 2009-12-10 | Rothe Erde Gmbh | sealing system |
| DE102010025985B4 (en) * | 2010-07-02 | 2017-11-02 | Handtmann Systemtechnik Gmbh & Co. Kg | Charging device for the compression of charge air |
| CN102818032B (en) * | 2012-09-10 | 2015-01-14 | 昆山健博密封件科技有限公司 | Rotary oil seal |
| WO2018193766A1 (en) * | 2017-04-19 | 2018-10-25 | Nok株式会社 | Positive/negative pressure gasket |
| CA3089510A1 (en) * | 2018-01-29 | 2019-08-01 | BYRNE, Jeanette | Hose coupling seal |
| CN108916380A (en) * | 2018-08-07 | 2018-11-30 | 南安闽塑卫浴有限公司 | One kind inlaying tube sealing device and its processing technology |
| US11639754B2 (en) | 2019-10-03 | 2023-05-02 | Nok Corporation | Positive/negative pressure gasket |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA576539A (en) * | 1959-05-26 | O. Kosatka Thomas | Fluid seal | |
| GB544881A (en) * | 1941-02-14 | 1942-04-30 | Angus George Co Ltd | Improvements in packing, fluid-sealing and dust excluding devices for plungers, pistons, shafts, bearings and the like |
| GB551152A (en) * | 1942-05-27 | 1943-02-09 | Coopers Mech Joints | Improvements in or relating to oil seals |
| AT304971B (en) * | 1968-08-02 | 1973-02-12 | Jenoe Szepesvary Dipl Ing | Seal designed as a radial or axial seal |
| GB1371341A (en) * | 1971-02-25 | 1974-10-23 | Skf Uk Ltd | Seals such as are used for a rolling bearing |
| US4021049A (en) * | 1975-12-15 | 1977-05-03 | Caterpillar Tractor Co. | Adjustable lip type seal for a crankshaft |
| DE2807022C2 (en) * | 1978-02-18 | 1982-07-01 | Fa. Carl Freudenberg, 6940 Weinheim | Sealing ring |
| GB2147666B (en) * | 1983-10-06 | 1987-02-11 | Angus & Company Limited George | Fluid sealing structure |
| GB2172941B (en) * | 1985-03-30 | 1988-03-16 | Ronald Geoffrey Mccoy | Shaft seal |
| DE3634735A1 (en) * | 1986-10-11 | 1988-04-21 | Goetze Ag | LOCKING CAP, ESPECIALLY FOR CRANKSHAFT AND GEARBOX HOUSING IN MOTOR VEHICLES |
| US4799691A (en) * | 1988-02-22 | 1989-01-24 | Microdot Inc. | Rear crankshaft seal housing with integrally bonded seal |
| US5152538A (en) * | 1988-03-21 | 1992-10-06 | Chicago Rawhide Manufacturing Company, Inc. | Composite seal assembly |
| DE4018215C2 (en) * | 1990-06-07 | 1994-07-21 | Goetze Ag | Shaft sealing |
| DE4115922A1 (en) * | 1991-05-16 | 1992-11-19 | Freudenberg Carl Fa | CRANKSHAFT GASKET FOR AN INTERNAL COMBUSTION ENGINE |
-
1994
- 1994-02-07 JP JP03531994A patent/JP3177086B2/en not_active Expired - Fee Related
-
1995
- 1995-02-03 US US08/383,489 patent/US5588656A/en not_active Expired - Lifetime
- 1995-02-06 DE DE19503822A patent/DE19503822A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| JP3177086B2 (en) | 2001-06-18 |
| US5588656A (en) | 1996-12-31 |
| DE19503822A1 (en) | 1995-08-10 |
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Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010227 |
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